Pressure balance

Applications of the pressure balance

Primary standard for defining the pressure scale in a pneumatic range of up to 100 bar (1,500 psi) or with a gas to oil separator up to 400 bar (5,000 psi)

Reference instrument for factory and calibration laboratories for the testing, adjustment and calibration of pressure measuring instruments

Complete, stand-alone system, also suitable for on-site use

Special Features of the pressure balance

Total measurement uncertainty to 0.008 % of reading

Factory calibration included as standard, traceable to national standards; with DKD/DAkkS calibration possible as an option

High long-term stability with recommended recalibration interval every five years

Masses manufactured from stainless steel and aluminium, can be adjusted to local gravity

Quick and safe replacement of the piston-cylinder system for measuring range changes via patented ConTect quickrelease system as an option

Description of the pressure balance

Proven primary standardPressure balances (dead-weight testers) are the most accurate instruments available on the market for the calibration of electronic or mechanical pressure measuring instruments. The direct measurement of the pressure (p = F/A), as well as the use of high-quality materials enable a very small measurement uncertainty, in conjunction with an excellent long-term stability. The pressure balance (dead-weight tester) has therefore been used for years in factory and calibration laboratories in industry, national institutes and research laboratories.

Stand-alone operationDue to its integrated pressure generation and the purely mechanical measuring principle, the model CPB5000 is ideal for on-site use for maintenance and service.

Basic principlePressure is defined as the quotient of force and area. The core component of the pressure balance CPB5000 is therefore a very precisely manufactured piston-cylinder system, onto which a mass load is applied in order to generate the individual test points.

The mass load is proportional to the target pressure and this is achieved through optimally graduated masses. As standard, these masses are manufactured to the standard gravity (9.80665 m/s²), though they can be adjusted to a specific location and also DKD/DAkkS calibrated.